Process config files as golang templates

[dbevacqua]

Environment variables are available inside the template. Existing functionality is unchanged - the template execution is a no-op if the template is plain yml

[dbevacqua]

Fixes #40

[dbevacqua]

@free any thoughts about this?

[free]

Apologies for the delay. Would it be possible to have a test for this? May also be useful as documentation.

[dbevacqua]

Sure. Do you have a template for this? I can't seem to find any tests in the repo.

[free]

Sure. Do you have a template for this? I can't seem to find any tests in the repo.

Yeah, that's because there aren't any. )o:

But it's never too late to add some. Just go wild and maybe I'll follow suit when I can find some time.

[burningalchemist]

@free I think I'll take care of these tests, so will provide them soon for you to take a look. The template works well, so in Kubernetes use case, for example, we can keep connection strings with passwords out of config. :)

[rmccarthy-ellevation]

Is this going to be merged anytime soon?

[dannykopping]

:heavy_plus_sign: I'd love this functionality too